March 1971 trough the periscope of the american military submarine USS Trepang

I came across these images on another site, and noticed that the supposed craft are making some splashes, contrary to modern sightings. Have these images been debunked, or are they genuine?

“These pictures were supposedly taken somewhere between Iceland and Jan Mayen in March 1971 trough the periscope of the american military submarine USS Trepang, classification number SSN 674, which, at the time was on a routine military and scientific (whatever that means in a military context) mission.The man on the periscope was called John Kilika, he was the first to spot them, although the man actually taking the pictures is unknown. They were made available to the public by researcher Alex Mistretta, who in turn got them from an anonymous european source. The source claimed that there were the following notes on the back of one of the pictures:“Official photograph. Not to be released. CT.” and “Unauthorized Disclosure Subject. Security Certificate SSN 674. Criminal Sanction.” I am not making any statements about what these things could be.”